US1912167A

US1912167A - Electrical reciprocating motor

Info

Publication number: US1912167A
Application number: US550585A
Authority: US
Inventors: Anderson Victor Russell
Original assignee: LEROY J LEAHY
Current assignee: LEROY J LEAHY
Priority date: 1931-07-13
Filing date: 1931-07-13
Publication date: 1933-05-30
Anticipated expiration: 1950-05-30

Description

SUCH LIN ERUUIIIE V. R. ANDERSON ELECTRICAL RECIPROCATING MOTOR Flled July 13 1931 BY ATTORNEY5 UUCH UH SIEUWI y 1933. v. R. ANDERSON 1,912,167

ELECTRICAL RECIPROCATING MOTOR Filed July 1:5, 1931 2 Sheets-Sheet 2 Patented May 30, 1933 1,912,167

VICTOR RUSSELL ANDERSON, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO LEROY J. LEAI-IY, OF CHICAGO, ILLINOIS ELECTRICAL REGIPROGATING MOTOR Application filed July 13, 1931. Serial No. 550,585.

My invention relates to improvements in method of connecting the field coils to an electrical reciprocating motors, and it conelectrical circuit, and sists in the combinations, constructions, and Figure 8 is an electrical diagram showing arrangements herein described and claimed. a reversible switch associated with the elec- An object of my invention is to provide trical circuit connected to the field coils. 55 an electrical reciprocating motor having a In carrying out my invention, I make use t eli ti fi 1d of a frame 1, a field structure 2, and an A further object is to provide a motor armature 3. The armature 3 may be fixedly of the character described adapted to be connected to ashaft 4. operated by alternating current. The frame 1 may be provided at either 60 A further object is to provide a motor end with opposite aligned openings 5 and adapted to be operated by a three phase 6 having bearings 7 and 8, respectively, alternating current. which are adapted to slidably support the A further object is to provide an electric shaft 4. The field structure 2 and the armamotor having an armature structure adapted ture 3 may each be made of a solid piece of 65 to serve as a reciprocatory member. ferromagnetic material or they may be A further object is to provide a motor laminated in any suitable manner. I have, of the character described having field coils for the purpose of illustration, shown the encircling its armature in such a manner armature consisting of laminated sections 8a that when the field coils are energized by which may extend from one end of the arma- 70 alternating current the armature and the ture to the other end substantially as shown. field coils will tend to move in opposite The armature 3 may be either round or di ti angular in cross section as the armature is A further object is to provide a motor designed to move forward and backward in particularly adapted to utilize a reversible a reciprocatory manner. The frame 1 may 75 traveling magnetic field in such a manner oonslst of an upper section 9 and a lower that the motor and the field will tend to section 10. These sections may be secured move in a straight line in opposite directogether in any suitable manner such as, for tions. instance, by screws 10a. The field structure Other objects and advantages will appear may be rigidly secured to the casing 1 by 80 in the following specification, and the novel screws 11. The field structure maybe profeatures of the invention will be particuvided with a centrally disposed opening 12 larly pointed out in the appended claims. for the purpose of receiving the armature 3. My invention is illustrated in the acc0m- Adjacent to this central opening I have pro panying drawings, forming part of this apvided spacedapart annular grooves 13 for 85 plication, in which receiving field coils 14. These field coils are Figure 1 is a vertical sectional view of my disposed at right angles to the axis of the invention, shaft 4 and encircle the armature 3 substan- Figure 2 is an enlarged section taken along tially as shown in Figure 1. the line 2-2 of Figure 1, The armature is provided with circum- 90 Figure 3 is a fragmentary sectional detail ferentially disposed annular grooves 15 in View of the armature, which are positioned conducting rings 16.

Figure 4 is a cross sectional view taken The field coils may be connected to a three along the line H of Figure 8, phase alternating current circuit substan- Figure 5 is a side elevational view, partly tially as shown in Figures 7 and 8. 95 in section, of a modification of my inven- From the foregoing description of the tion shown connected to a brake, various parts of the device, the operation Figure 6 is another modified form of my thereof may be readily understood. invention shown connected to a sliding door, WVhen the field coils 14: are connected as Figure 7 is a wiring dlagram showing one 1s indicated in Figure 7 and the field is energized, the armature will tend to move toward one end of the frame as is indicated by the arrow 17. When the field coils are connected as indicated in Figure 8, the armature will move back and forth as the switch member 18 is being alternately moved from the full line position 19 to the dotted line position 20.

In Figure 5 I have shown a slightly modified form of my invention applied to a brake construction generally indicated by the numeral 25. This brake construction may consist of a supporting structure 26, a drum 27 which may be fixedly mounted on a shaft 28, and brake shoes 29 and 29a pivotally supported by lever arms 30 and 30a.

The lever arms 30 and 30a may be piv otally mounted on the structure 26 by pins 31 and 31a. The pins may be fixedly secured to the structure 26 in any suitable manner. The shoes 29 and 29a may be provided with compression springs 32 and 3260. These springs may be fixedly secured to the shoes 29 and 29a and to walls 33 and 33a in any manner whereby the shoes may be held normally in contact with the drum 27.

The brake construction 25 forms no novel part of my invention but is merely shown and described for the purpose of illustrating a use for the motor 3% which is shown mounted on the top of the structure 26. This motor is similar to the preferred form of my invention shown in Figure 1 except that it is provided with a floating field structure 35, mounted on rods 36, which in turn are slidably mounted in oppositely disposed openings (not shown) at either end of the casing 1a. One end of each of the rods 36 may be fixedly secured to a T-shaped member 3? which is pivotally connected as indicated at 38. It will be observed that the field structure is not fixedly secured to the casing 1a and that it is adapted to move to and fro freely within the casing. The armature 3a and the shaft 4a may be mounted in the casing 1a in the same manner that the armature 3 and the shaft at are mounted in the frame 1. The shaft eta may be pivotally connected to the lever arm 30a in substantially the same manner as the T- shaped member is connected to the lever arm 80. The field coils 39 may be similar to the field coils disclosed in the preferred form of my invention shown in Figure l and may be connected in the same manner. Itis apparent that when the field coils 39 are energized the armature and the field structure will move in opposite directions and by so doing will loosen the brake shoes 29 and 29a on the drum 27 in such a manner as to allow the drum to move.

Another modified form of my invention is shown in Figure 6 connected to a sliding door 40. The door may be secured to rollers 41 supported on a track 42. The motor 43 comprises a frame 44, a field structure 45,

and an elongated armature 4G. The armature 416 may be slidably mounted in bearings 47. The frame iel may be secured in any suitable manner such as, for instance, by screws 48 to a stationary supporting structure 49. The field structure 45 may be provided with grooves 50 and coils 51 in the same manner as is the field structure shown in Figure l. The field structure may be rigidly secured to the casing 414- in any suitable manner such as, for instance, by screws 52. The armature i6 is similar in construction to the arn'iatnre 3, except that it is of greater length. The field coils 51 may be connected as indicated in Figure 8.

From the foregoing description of the various parts of the motor 48 it is apparent that when the field coils 51 are energized the direction of movement of the armature 46 will depend upon the position of the switch member 18 and that the door 40 may be opened or closed by correctly operating the switch member 18.

I claim:

1. In a multi-phase reciprocating motor of the class described a stationary frame, a field structure within said frame provided with a central opening and having a field winding for each phase of the motor adjacent to and encircling said opening, a plunger armature slidably mounted within. said frame, and movable within the central opening, each of said field windings comprising two or more coils connected in series with each other, at least one of the coils of each winding being disposed intermediate of the coils of another of said windings, said plunger armature being provided with a central shaft slidably mounted on the frame and projecting beyond each end of the frame, said armature having such length that it is longer than said field structure and always within at least one of the coils of each of said winding when it is at the end of its line of travel, said motor being provided with and operatively connected to a switch means whereby the length and the direction of the movement of the armature may be manually controlled.

2. In a multi-phase reciprocating motor of the class described a stationary frame, a field structure within said frame provided with a central opening and having a field winding for each phase of the motor adjacent to and encircling said opening, a plunger armature slidably mounted within said frame, and movable within the central opening, each of said field windings comprising two or more coils connected in series with each other, at least one of the coils of each winding being disposed intermediate of the coils of another of said windings, said plunger armature being provided with a central shaft slidably mounted on the frame and projecting beyond each end of the frame,

said armature having such length that it is longer than said field structure and always within at least one of the coils of each of said windings when it is at the end of its line of travel, said field structure being slidably mounted within said frame and being provided with shaft means substantially longer than said frame.

3. In a multi-phase reciprocating motor of the class described a stationary frame, a field structure within said frame provided with a central opening and having a field winding for each phase of the motor adja cent to and encircling said opening, a plunger armature slidably mounted within said frame, and movable within the central opening, each of said field windings comrising two or more coils connected in series with each other, at least one of the coils of each winding being disposed intermediate of the coils of another of said windings, said plunger armature being provided with a central shaft slidably mounted on the frame and projecting beyond each end of the frame, said armature having such length that it is longer than said field structure and always within at least one of the coils of each of said windings when it is at the end of its line of travel, said motor being provided with and operatively connected to a switch means whereby the length and the direction of the movement of the armature may be manually controlled, said field structure being slidably mounted within said frame and being provided with shaft means substantially longer than said frame.

4. In a multi-phase reciprocating motor of the class described a stationary frame, a field structure within said frame provided with a central opening and having a field winding for each phase of the motor adjacent to and encircling said opening, a plunger armature slidably mounted within said frame, and movable within the central opening, each of said field windings comprising two or more coils connected in series with each other, at least one of the coils of each winding being disposed intermediate of the coils of another of said windings, said plunger armature being provided with a central shaft slidably mounted on the frame and projecting beyond each end of the frame, said armature having such length that it is longer than said field structure and always within at least one of the coils of each of said windings when it is at the end of its line of travel, said motor being provided with and operatively connected to a switch means whereby the length and the direction of the movement of the armature may be manually controlled, said armature being provided at either end with rigid supporting means, said supporting means being each provided with a bracket adapted to be secured to a slidable member.

5. In a multi-phase reciprocating motor of the class described a stationary frame, a field structure within said frame provided with a central opening and having a field winding for each phase of the motor adjacent to and encircling said opening, a plungr armature slidably mounted within said frame, and movable within the central opening, each of said field windings comprising two Or more coils connected in series with each other, at least one of the coils of each winding being disposed intermediate of the coils of another of said windings, said plunger armature being provided with a central shaft slidably -mounted on the frame and projecting beyond each end of the frame, said armature having such length that it is longer than said field structure and always within at least one of the coils of each of said windings when it is at the end of its line of travel, said motor being provided with and operatively connected to a switch means whereby the length and the direction of the movement of the armature may be manually controlled, said armature being provided at either end with rigid supporting means, said supporting means being each provided with a bracket adapted to be secured to a slidable member, and with a roller for movably supporting said armature and said sliding member upon a stationary track means.

6. In a multi-phase reciprocating motor of the class described a stationary frame, a field structure within said frame provided with a central opening and having a field winding for each phase of the motor adjacent to and encircling said opening, a plunger armature slidably mounted within said frame, and movable within the central opening, each of said field windings comprising two 01' more coils connected in series with each other, at least one of the coils of each winding being disposed intermediate of the coils of another of said windings, said plunger armature being provided with a central shaft slidably mounted on the frame and projecting beyond each end of the frame, said armature having such length that it is longer than said field structure and always within at least one of the coils of each of said windings when it is at the end of its line of travel, said field structure being slidably mounted within said frame and being provided with shaft means substantially longer than said frame, said central shaft of said armature being pivotally connected to a lever, said shaft means of said field structure being pivotally connected to a second lever, each of said levers being provided with a circular transverse open portion intermediate of their ends, and being provided at their ends not connected to said motor with a second transverse open portion, each of said open. portions being pivotally connected to a brake shoe member each of said brake shoe members being adapted for clamping engagement with a rotatable member intermediate of said brake shoe members.

7. A reciprocating alternating current m0- tor comprising a frame, a field structure within said frame provided with a central opening and having a field winding comprising a plurality of groups of coils adjacent to and encircling said opening, a plunger armature slidably mounted within said frame and movable within the central opening, each group of said field coils comprising two or more coils connected in series with each other, at least one of the coils of each group being disposed intermediate the coils of another of said groups, said plunger armature being provided with a central shaft slidably mounted in said frame and projecting beyond the same, said armature being of greater length than said field structure and always within at least one of the coils of each of said groups when it is at the end of its line of travel, and switch means for controlling the length and direction of movement of said armature.

VICTOR RUSSELL ANDERSON.

baaaux: